Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6226801 | Football helmet having a removable inflatable liner and a method for making the same | Cherie Alexander, Brian G. Howard | 2001-05-08 |
| 6178560 | Helmet fitting system | Cherie Alexander | 2001-01-30 |
| 6073271 | Football helmet with inflatable liner | Cherie Alexander, Brian G. Howard | 2000-06-13 |
| 5381560 | Fitting and retention system for headgear | — | 1995-01-17 |
| 5083320 | Protective helmet with self-contained air pump | — | 1992-01-28 |